This change switches the code view UI to use minimize and maximize buttons within the QtCodeView instead of creating
separate windows for each maximized code file. Real icons for the buttons are still missing.
* added title for snippets
* title displays name of parent scope.
* when new TokenLocationFiles are created in the storage they are now returned as shared_ptr to ensure correct linking in the contained data.
* Storage::getTokenLocationsForLinesInFile() now always returns pairs of start and end locations.
* Adjusted code snippet view to regard the change described above.
* darkened red of error message in status bar
* added status error when not defined startupproject
* added tooltips for remaining search view buttons
* added filepath as tooptip for title in code view
* opening file when clicking title in code view
* updated spacings and colors in QtCodeView and QtCodeFile
* using Source Code Pro Regular (had to remove light cut from the Fonts folder because it got always used)
* updated syntax highlighted colors to fit design
* changed colors of highlights
* indent all QtCodeSnippets by maximum line number in QtCodeFile
* fixed syntax highlighting to work with sole multiline comment end
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Eberhard Graether